Product Description

Limited Internal
PRODUCT DESCRIPTION 22 ( 27 )
EAB/SEMCON Staffan Paulusson EN/LZT 720 0491 Uen
EAB/RKW Lena Jonsson Borg 2004-12-28 R1A
Prepared (also subject responsible if other) No
Approved Checked Date Rev Reference
E
Indicators Unit Description
Bat disconnect BFU Battery disconnected
Battery mode DXU Indicates that the RBS is running on
battery
EPC bus fault DXU, PSU,
FCU, CCU, BFU
Communication to superior RU is lost
External alarm DXU One or more supervised external alarms
are active
Fan fault FCU A fan is faulty
Fault All RUs Fault detected and localised to the RU
Heater fault CCU The heater is faulty
H/E external fan fault CCU A fan in the external circuit is faulty
H/E internal fan fault CCU A fan in the internal circuit is faulty
Local mode dTRU, DXU The RU is in local mode
Operational All RUs The RU is operational
Power fault PSU AC power or at least one phase is
missing in the RBS
RBS fault DXU One or more faults are detected on RUs
in the RBS
RF off dTRU No RF signal
TMA 1 – 6 TMA-CM The TMA is operational
Transmission OK DXU Signal and frame sync. OK
Buttons
Table 12 Switches and Circuit Breakers
Switch
Position Function
Test button CLU CLU self-test
DXU reset DXU Resets the DXU and all
subunits
Local/remote DXU, dTRU Changes mode between
local and remote
TRU reset DTRU Resets the dTRU
Battery disconnected BFU Disconnects the battery
supply
DC out 1 BFU CB for DC out 1
DC out 2 BFU CB for DC out 2